trunk
Client: split forward-compatible React 19 type updates (#111699)
Performance Profiler: Add DeviceTab context to share the selected Tab in inner components (#97611)
Performance Profiler: Add score to track event and fix duration (#106644)
MSD: Add Tracks events (#107486)
MSD: Use forced-opt-in to determine whether the user has opt-in and do redirection (#108191)
Site Launch: ship semi-gated flow as default after gating experiment (#111638)
A4A > Sites: Implement Site Performance feature (#101819)